Bradley International Airport Tuesday morning cancelled almost all of its daily arrivals-departures as the third nor'easter in almost two weeks sweeps across the state.

As of 8:30 a.m., all but five morning flights were cancelled from the state's biggest airport and one arriving flight was on time.

Hartford Mayor Luke Bronin said today that city hall is closed as public works, public safety, fire and other emergency employees will remain on duty.

Gov. Dannel P. Malloy also announced that state offices will be closed for the day and that nonessential first-shift employees should stay home.

"We encourage everyone to be safe and stay off the roads if at all possible," Malloy said in a statement. "If you absolutely must travel, please allow extra time, reduce speeds, keep a safe distance from plows, and do not attempt to pass plows, as that can be extremely dangerous."

"If employers can allow people to work from home or alter their hours, we encourage them to do that as well," Malloy said.

A Bradley spokeswoman said about 65 percent of Tuesday's flights are cancelled and that additional cancellations are possible as airlines continue to adjust their schedules in response to the storm.

Passengers scheduled to travel on Tuesday are urged to check their flight itineraries and check any potential rebooking options before arriving to the airport. For more information visit www.flybdl.org.

Weather forecast

The latest storm, coming in the aftermath of two deadly nor'easters and resulting blackouts, is also expected to bring coastal flooding and powerful winds.

On top of that, it could reach "bomb cyclone" status in some parts of the country, which is a severe drop in atmospheric pressure that would bring heavy snow and winds.

Travel conditions are expected to be difficult Tuesday morning, as nearly 44 million people are under winter weather advisory or warning. The nor'easter is expected to bring blizzard conditions to coastal Massachusetts.

Winter storm warnings are in effect for parts of Long Island, Connecticut, Massachusetts, Vermont, New Hampshire and Maine.

Winter storm warnings will remain in effect until 8 p.m., according to the National Weather Service. The center of the storm is forecast to pass around 200 miles southeast of Cape Cod early Tuesday morning.

The National Weather Service's Boston office is forecasting 8 inches to a foot of snow for parts of Connecticut through western Massachusetts and up to 18 inches for eastern Massachusetts and Rhode Island.